Bass - The Synapse Bass is equipped with a STEREO piezo which allows output (volume) level adjustment of the lower bass strings versus the higher bass strings. Often, the lower string(s) have either too much output or not enough in relation to the other strings. Depending upon your playing style, this stereo output feature is vital if you want the best possible bass sound. Every Synapse bass features 3 trimpots located inside the control panel cover on the back. These are preset at the factory to create balanced volume levels between the lower bass strings, the higher bass strings and the magnetic pickup. However, you can adjust to suit your musical taste.